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USSR 1969 postage stamp printed in USSR shows Dmitri Ivanovich Mendeleev (1834-1907) and Formula with Author's Corrections, Century of the Periodic Law (classification of elements), formulated by Mendeleev, circa 1969.
Spain Stamp: Shows Portraits of King Juan Carlos.
beautiful young female student is practicing in a chemistry classroom with flasks on the background of a board with formulas. Chemistry concept
Female research scientist looking through a microscope while sitting in a medical laboratory office.
close up photo of the words commercial law
a lawyer thinking
Veterinarian works at their own clinic
The ecologist examines the taken samples of plants in test tubes. Conducting environmental surveys with samples of grass and trees, lifestyle
Young female scientist analyzing a patient sample under a fluorescence microscope in a genetics laboratory
Senior forensic scientist working in laboratory
Panoramic image of a young female scientist reading printed notes in scientific laboratory
Female researcher using a microscope in the laboratory
Income Tax Instructions 1950s
Closeup of a mail voter information paper, focused on 'Signature Verification' section and hand with pen hovering over it.
Close up of document with braille and printed text
cute Japanese girl
High school student using microscopes in laboratory.
close up photo of the words fourth amendment
Photo of School teacher lecturing remotely from home
Side View of the Young Man with a Book and Magnifying Glass on the White Background
Two female Young adult biochemistry technician working in laboratory
50 Turkish Lira banknotes. Paper money. Cash. TRY. Financial and business concept.
High school girls doing research project in biology classroom, teacher advising on use of microscope
Doctor woman with microscope in laboratory room. Scientific research
Shot of a scientist conducting research in a laboratory
close up photo of the words anti discrimination act
Woman using a microscope in her office
Focus on the word Bank inside a dictionary
Man and woman are working in circuit board factory
Free Images: "bestof:Journalist and anthropologist Patricia A. McBroom wrote for Science News from 1965-1969. She is the author of Behavioral Genetics (1980) and The Third Sex"
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Genetic corn.jpg
Recombinant DNA- southern blot.jpg
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Recombinant DNA.jpg
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Elizabeth_Bourchier,_wife_of_Oliver_Cromwell.jpg
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